Antiskid attachment for automobiles-tires.



J. G. FLORACK. ANTISKID ATTACHMENT FOR AUTOMOBILE TRBS. APPLICATION-FILED 00T.14, 1912.'

Patented Nov. 4, 1913.

lCE.

JGSEPH G. FLRCK, OF ROCHESTER, NEW YORK.

ANTIEKE) ATTAHMENT FOP. AUTOMOBILE-TIRES. I

-Specication of Letters Patent.

Patented N ov. 4.-, 1913.

Application filed October 14, 1912. Serial No. 725,631.

To all wim-m it may concern Be it known that I, JOSEPH G. FLonAoK, a citizen or' the United States, and a resident ot' Roel ester, in the county of Monroe and Stute of New York, have invented a new and Improved i'ntisltid Attachment for utoinobileTires, of which the following is a specification.

`y lhis invention relates to means for preifenting the slridoing of automobile Wheels.

The object of'iny invention is to provide a cheap, elicient and readily attachable and detachable anti-skidding device.

vWith these objects in view my invention comprises a series of tread pieces adapted to engage around the outer periphery of an automobile tire and in planes substantially radially to the axis of the Wheel on which the tire is located. These members are mounted to freely move inwardly and out- Wardly radially of the Wheel and they are also pivotallymounted so as to permit of their occupying positions in different planes angnlarly disposed with reference to the radial planes which they normally occupy. These tread pieces are composed, preferably, of steel forgings adapted to engage over the outer surface of a tire and to extend 4inwardly on each side thereof, and their outer surfaces are so conformed as to tend to prevent the skidding of the Wheel and on their inner surfaces they are so conformed as not to injure the tire. i

rlhe parts of the tread pieces engaging inwardly on each side of the tire are provided 4 with slots and they are' held in place by clips having T headsy thereon engaging through the slots andfturiiable therein for the purpose of insertion and removal and they are held securely in locking position. to prevent their Withdrawal from the slots by means to be described, and to this end the clips may, preferably, he mounted on a continuous ring on each side of the wheel and Within the 45- vcircle of the tire in such a way as to permit of their moving eccentrically of the Wheel vto compensate at least partially for the flattening of the tire on the lower side as it engages the road bed. The slots in the tread pieces supplement this'action in a Way to permit all necessary radial movement of the tread pieces for all conditions of pneumatic tension under which the tire should he used. Flexible connect-ions, such as chains, are used in the manner shown tendingto both restore and hold the tread pieces in their normal positions in radial planes.

The accompanying drawings illustrating my invention are as follows Figure l is a side view of a. portion of a Wheel having an anti-skid device 'there-on embodying inyvinvention. Fig. 2 is an enlarged side 'view of a small part of the Wheel showing one of the tread pieces and a part oi the attaching device. Fig. 3 is a transverse sectional view taken along the linel -y/ of Fig. 2 with all the line removed.

Similar parts are designated by similar reference characters throughout the several figures of the drawings.

Referring to the draWings,-T represents the usual outer tire and t the inner tube.

R is the rim of the Wheel shown in this instance as of the usual cleneher type.

F is the felly and at s are seen the spokes While at H, in Fig. l, is seen' the hub of the Wheel.

V shows one of the tread pieces corrugated as seen at o and provided with outwardly formed bosses or lugs c having openings therethrough for receiving the bracing chains C. The tread pieces V are substantially ,U shaped and have their free ends e-X- vtending' inwardly in approximately radial lines and are provided with radially extending slots near their inner ends as seen at a.

P are the attaching clips having short T shaped projections ,or bolts 79 adapted, when the clips are turned at right angles to their normal positions, to prevent their Withdrawal from said slots as seen, The attaching clips P are curved, as seen in Fig. 3, and extend inwardly to engage against the supporting and attaching rings E. Holes are provided through these rings E and through the inner ends of the clips P for receiving bolts e by means of which the clips P may be securely attached to the'ring's E and, to prevent angular movement of the clips P relative to theringsE, ears or lugsn are formed on the clips P adapted to enga-ge parts to the left of y under and against the inner peripheral edge v of the rings E. The T bolts p on the clips/1P are inserted through the slots a in the treads V prior to the attachment of the clips Pto the rings E. The clips P are also provided with holes for receivingchains C as a means to aid in holding the tread pieces V in nor.- mal positions and against displacement in the movement of the wheel. The outer ends of the chains C engage through and are se cured in openings therefor in the bosses. o comprising portions of the tread 'pieces forced outwardly from the normal plancof 4the nietalfor the purpose of providing in* anti-skid device in laccordance with my in- 'vention is as follows,

vim-, The clips P' are inserted, by means of'the T shaped proie@v tions p thereon, through the slots therefor in the side arms of the tread pieces V. and -suchtr'ead pieces thereafter inserted, over the tire after whicli the clips l) are secured to the 4rings E by means of the bolts e.

It is believed from the foregoing description Vof the construction and. operation of the several parts of an antrslridding device in accordance with my invention thatv the method of using the saine is snilieiently clear to call. for no further explanation herein.

The. tread pieces may be, as indicated in Fig. 3,.eonforined to receive the tire when slightly flattened :is it engages against Jthe road hed and they will, therefore, of course 'he of -a somewhat Hatter curvature than the normal curvature of the tire (in radial` planes) at its upper periphery.

.lVhat claim is:-

1. A device for the purpose described coniprisinga series of tread. pieees'having inwardly extending side arms, a common snpporting element with the side arms of the tread pieces slidal'ily mounted thereon to more in radial planes, and flexible connections between the tread pieces tending to return theinto and hold them in relative normal 'positions in radial planes, sncli ieinible connections comprising chains connecting each tread' piet-e to the supporting element at points adjacent-.to the tre-ad piece on each side thereof.

. Q. A device for the purpose described comlp-rising a sei-ies of tread pieces having inwardly extending side arms, a common snp-- parting porting element with the side arms of the tread pieces slidahl'y mounted thereon i'to move .in radial planes 'and alsol pivotally mounted thereon to swing to positions 'deangularly from radial planes, and flexible connections between the tread pieces tending to return them to and hold them in relative normal positions in radiall planes, such exible connections comprising chains connectingea'ch tread piece to the supporting element at points adjacent to the treadpiece on each side thereof.

3. A device'for the purpose described co in.

prising a series of tread pieces having inwardly extending side arms, a ring on each side of the wheel, attaching members on the rings upon which the side arms of the ti eed pieces are slidably mounted tojmove in planes extending radi-ally of the wheel flex'il tached .to the wheel or tire, andl ble connections between the tread pieces tending to return them to and holdthem elative normal positions in radial planes,

such flexible 'connections comprising chains connecting each tread piece to the attaching member of the adjacent tread piece/0n each` side thereof. 4

' 4. device for the purpose described comprising a series of tread pieces having inwardly extending side arms, a ring on each side of the Wheel, attaching members on the 7o and rings, the rings being .otherwise unat-f* rings upon which the side arms of the tread piecesjare .slidably mounted to move in 'planes extending radially of the wheel and rings and pivotally mounted thereon Vto swing to positions departing angularly from radial planes,l therings being otherwise un attached to the wheeler tire, and flexible connections between' the tread pieces tending to return them to and hold them in i'ela-, tive normal positions in radial planes,l suchy 4flexible connections comprising chains corr nectingeach tread piece to the attaching member of the adjacent tread piece o1ie,a}eli-y side thereof. 4

JOSEPH G. FLORAGK.

Witnesses: ,p MARTHA NELSON, @encima it. GURNEY. 

